The American Journal of Science and Arts, Vol. 66 (Classic Reprint)@1499 Rs [Mrp:-1499]

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    Excerpt from The American Journal of Science and Arts, Vol. 66
    (1.) The object of this paper is to prove the existence of different properties in the rays of the spectrum, in their action on vegetables, * and more especially to show that the rays which produce the green color of plants, are altogether dissimilar from those which influence their movements towards light-the color being developed by the less refrangible rays, and chiefly by the yellow; whereas, the motion is influenced by indigo light. The discussion of the subject will be divided under three heads:
    1. On the production of chlorophyl by yellow light.
    2. On the movements of plants towards indigo light.
    3. Some application of these facts to vegetable physiology.
    I. On the production of chlorophyl by yellow light
    (2.) It is a fundamental fact in botany that light is necessary to the formation of chlorophyl. Yon Humboldt adduced certain exceptions to this law, in the case of plants found in the mines of Freyberg, and with Senebier ascribed the green matter to the action of hydrogen gas. But the experiments of the latter failed in the hands of De Candolle, and a series instituted by myself, and conducted with great care, were equally unsuccessful.
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    This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

    Product Details :

    Author Silliman Silliman
    Binding Paperback
    EAN 9781330419120
    Format Import
    ISBN 133041912X
    Label Forgotten Books
    Manufacturer Forgotten Books
    MPN black & white illustrations
    NumberOfItems 1
    NumberOfPages 452
    PartNumber black & white illustrations
    ProductGroup Book
    ProductTypeName ABIS_BOOK
    PublicationDate 2015-09-27
    Publisher Forgotten Books
    Studio Forgotten Books
    Title The American Journal of Science and Arts, Vol. 66 (Classic Reprint)